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Tried some MMO in Stratus, in 100k mile don't think I've ever put any kind of cleaner into the fuel(220k on car). Test is limited, but 2 tanks before MMO 36.2 & 36.9 mpg, next 2 tanks 32.6 & 34.9. Changed to E0 on this tank so should jump back up some. Next tank will be E0 and no MMO.
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